FMUS23 KWNH 231819 PRBEHL DAYS 3--7 HEAT INDEX FORECAST TABLES NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 1817 UTC SUN AUG 23 2026 MINIMUM HEAT INDEX (DEG F) AND MINIMUM HI PROB (%) FRCSTS AT EASTERN US CITIES - DAYS 3 TO 7 FROM SUN AUG 23 2026 AKRON-CANTON_OH ALBANY_NY CAK 0826 0827 0828 0829 0830 ALB 0826 0827 0828 0829 0830 MIN 56 62 63 59 60 MIN 57 60 64 59 55 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 0 %>80 0 0 0 0 0 %>75 0 0 0 0 1 %>75 0 0 0 0 0 %>70 0 0 0 1 6 %>70 0 0 0 1 0 ASHEVILLE_NC ATLANTA_GA AVL 0826 0827 0828 0829 0830 ATL 0826 0827 0828 0829 0830 MIN 62 64 63 63 64 MIN 72 73 72 71 72 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 0 %>80 0 0 0 0 0 %>75 0 0 0 0 0 %>75 12 20 11 9 14 %>70 2 7 3 3 5 %>70 70 88 79 68 81 BALTIMORE_MD BIRMINGHAM_AL BWI 0826 0827 0828 0829 0830 BHM 0826 0827 0828 0829 0830 MIN 65 72 72 70 69 MIN 72 73 73 72 72 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 1 2 %>80 1 3 1 1 2 %>75 0 12 13 11 14 %>75 21 31 21 16 24 %>70 12 70 71 55 46 %>70 79 82 81 66 75 BOSTON_MA BUFFALO_NY BOS 0826 0827 0828 0829 0830 BUF 0826 0827 0828 0829 0830 MIN 62 64 69 67 62 MIN 57 64 64 57 58 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 0 %>80 0 0 0 0 0 %>75 0 0 0 1 1 %>75 0 0 0 0 0 %>70 0 1 33 20 6 %>70 0 1 1 0 3 CHARLESTON_SC CHARLESTON_WV CHS 0826 0827 0828 0829 0830 CRW 0826 0827 0828 0829 0830 MIN 76 77 77 77 77 MIN 58 66 67 65 66 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 1 1 1 0 %>90 0 0 0 0 0 %>85 3 5 7 5 5 %>85 0 0 0 0 0 %>80 19 26 28 25 25 %>80 0 0 0 0 0 %>75 58 64 64 61 66 %>75 0 0 0 0 3 %>70 91 92 91 90 94 %>70 0 9 6 9 19 CHARLOTTE_NC CHICAGO_IL CLT 0826 0827 0828 0829 0830 ORD 0826 0827 0828 0829 0830 MIN 68 70 70 70 71 MIN 66 66 65 65 68 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 1 %>80 0 0 0 01 %>75 6 11 9 8 12 %>75 1 1 1 2 7 %>70 33 54 55 56 60 %>70 6 8 7 12 32 CINCINNATI_OH CLEVELAND_OH LUK 0826 0827 0828 0829 0830 CLE 0826 0827 0828 0829 0830 MIN 60 66 66 64 65 MIN 59 66 66 62 63 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 0 %>80 0 0 0 0 0 %>75 0 0 0 0 4 %>75 0 2 3 2 3 %>70 0 11 10 7 20 %>70 3 11 16 8 13 COLUMBIA_SC COLUMBUS_OH CAE 0826 0827 0828 0829 0830 TZR 0826 0827 0828 0829 0830 MIN 72 73 73 73 74 MIN 58 65 64 62 63 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 2 3 2 1 2 %>80 0 0 0 0 0 %>75 22 29 31 30 33 %>75 0 0 0 0 2 %>70 71 79 86 88 88 %>70 0 2 3 3 12 DAYTON_OH DETROIT_MI MGY 0826 0827 0828 0829 0830 DET 0826 0827 0828 0829 0830 MIN 59 66 65 63 65 MIN 63 68 65 63 66 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 0 %>80 0 0 0 0 0 %>75 0 0 0 0 4 %>75 0 0 1 1 4 %>70 0 6 5 5 18 %>70 3 18 8 7 21 EVANSVILLE_IN GRAND_RAPIDS_MI EVV 0826 0827 0828 0829 0830 GRR 0826 0827 0828 0829 0830 MIN 66 69 67 66 69 MIN 59 64 59 57 62 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 2 %>80 0 0 0 0 0 %>75 0 3 0 1 14 %>75 0 0 0 0 2 %>70 9 43 19 17 43 %>70 0 0 0 2 9 GREENSBORO_NC HUNTSVILLE_AL GSO 0826 0827 0828 0829 0830 HSV 0826 0827 0828 0829 0830 MIN 65 69 69 69 69 MIN 70 72 71 69 71 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 0 %>80 0 1 0 0 1 %>75 1 5 4 3 7 %>75 8 17 5 6 12 %>70 12 39 40 38 42 %>70 52 74 63 44 59 INDIANAPOLIS_IN KNOXVILLE_TN IND 0826 0827 0828 0829 0830 TYS 0826 0827 0828 0829 0830 MIN 61 66 64 63 66 MIN 65 70 69 67 69 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 0 %>80 0 0 0 0 0 %>75 0 0 0 0 4 %>75 0 7 1 1 4 %>70 0 4 4 4 21 %>70 8 45 32 2236 LEXINGTON_KY LOUISVILLE_KY LEX 0826 0827 0828 0829 0830 SDF 0826 0827 0828 0829 0830 MIN 61 67 66 65 66 MIN 64 69 67 66 68 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 1 %>80 0 0 0 0 1 %>75 0 2 0 1 6 %>75 0 2 1 1 9 %>70 1 23 13 13 26 %>70 2 38 21 18 37 MEMPHIS_TN MIAMI_FL MEM 0826 0827 0828 0829 0830 MIA 0826 0827 0828 0829 0830 MIN 75 74 73 72 74 MIN 87 87 88 88 88 %>100 0 0 0 0 0 %>100 2 2 2 2 3 %>95 0 0 0 0 0 %>95 11 12 13 15 16 %>90 0 0 0 0 0 %>90 33 35 40 42 42 %>85 1 0 0 0 1 %>85 63 64 69 70 70 %>80 11 4 2 2 11 %>80 86 87 91 90 90 %>75 50 36 28 22 39 %>75 97 97 98 98 98 %>70 89 86 82 69 75 %>70 99 99 100 99 99 MILWAUKEE_WI MOBILE_AL MKE 0826 0827 0828 0829 0830 MOB 0826 0827 0828 0829 0830 MIN 67 65 64 64 67 MIN 76 77 76 75 76 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 1 0 0 0 %>90 0 0 0 0 0 %>90 1 3 1 0 1 %>85 0 0 0 0 0 %>85 7 11 7 3 6 %>80 0 0 0 0 1 %>80 25 30 24 17 22 %>75 1 1 1 2 6 %>75 58 59 53 49 53 %>70 12 9 9 14 30 %>70 86 84 81 82 83 NASHVILLE_TN NEW_YORK_CITY_NY BNA 0826 0827 0828 0829 0830 NYC 0826 0827 0828 0829 0830 MIN 68 71 70 69 70 MIN 65 70 71 69 67 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 2 %>80 0 0 0 0 1 %>75 4 11 4 5 15 %>75 0 4 10 5 6 %>70 28 63 46 37 51 %>70 3 50 68 43 27 NORFOLK_VA ORLANDO_FL ORF 0826 0827 0828 0829 0830 ORL 0826 0827 0828 0829 0830 MIN 73 75 75 75 75 MIN 78 78 78 78 78 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 2 2 3 5 7 %>80 2 8 8 9 8 %>80 25 25 27 32 36 %>75 34 58 57 57 58 %>75 77 76 77 74 78 %>70 78 92 94 93 93 %>70 98 98 98 96 97 PHILADELPHIA_PA PITTSBURGH_PA PHL 0826 0827 0828 0829 0830 PIT 0826 0827 0828 0829 0830 MIN 64 70 71 69 67 MIN 57 62 65 61 61 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 1 %>80 0 0 0 0 0 %>75 0 1 3 5 6 %>75 0 0 0 0 1 %>70 1 46 68 40 27 %>70 0 0 0 1 6 PORTLAND_ME PROVIDENCE_RI PWM 0826 0827 0828 0829 0830 PVD 0826 0827 0828 0829 0830MIN 59 60 65 62 56 MIN 60 64 68 66 61 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 0 %>80 0 0 0 0 0 %>75 0 0 0 0 0 %>75 0 0 0 2 1 %>70 0 0 5 5 1 %>70 0 2 26 19 5 RALEIGH-DURHAM_NC RICHMOND_VA RDU 0826 0827 0828 0829 0830 RIC 0826 0827 0828 0829 0830 MIN 68 71 72 72 72 MIN 65 70 71 71 70 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 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